I always turn off sleep and hibernation as I have never had it work properly on desktops. Usually after doing this the system stops creating the hiberfil.sys on the OS root drive. Using Windows 7 RC after turning off all the sleep/Hibernate options (I can find) the file is still present and won't let me delete it. Put the computer to sleep - Never * Power Option * Sleep Sleep after - Never Allow hybrid sleep - Off Hibernate after - Never Allow wake timers - Disabled Thanks!

try 'POWERCFG -H OFF' from the command prompt

Worked instantly... Thanks!

There is also an alternative method and that is to click Start>All Programs>Accessories>System Tools>Disk Cleanup. in the disk cleanup window place a tick in the box next to the 'hibernation file cleaner' option and then click OK to allow disk cleaner to clear all files.Incidentally if you ever want to re-enable hibernation just open the command prompt and type 'powercfg -h ON' and it will return.John Barnett MVP: Windows XP Associate Expert: Windows Desktop Experience: Web: http://www.winuser.co.uk; Web: http://xphelpandsupport.mvps.org; Web: http://vistasupport.mvps.org;

I'm not sure what to tell you. When I turned hibernate off, the hibernate file was deleted by Windows.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

There is also an alternative method and that is to click Start>All Programs>Accessories>System Tools>Disk Cleanup. in the disk cleanup window place a tick in the box next to the 'hibernation file cleaner' option and then click OK to allow disk cleaner to clear all files. Why does the 'hibernation file cleaner' option not appear in the Disk CleanUp list on my computer? TIA, Gerry

I would guess it is because you do not have a hibernate file on your hard drive. I have hibernate turned on and I do not have the option in my Disk Cleanup to clean the hibenate file. Is hibernate still turned on on your system? If so, perhaps you won't be givien the option to clean the hibernate file because it is a system protected file.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

I have Hibernate turned off. I have a hibernate file in two fragments.Hope this helps, Gerry